1930 or 1931 model S

[EDHupp]

Just bought a Hupmobile that was sold as a 1931 century 6 S that I plan on restoring. When I looked up the serial number on the Hupmobile Club website, it shows that it may be a 1930.  Are there any differences that I should look for that I may be able to decipher which it actually is?

[huptoy]

Hupp Motor Co had minimal changes for the model S from 30 to 31. 

The temperature gauge was added to the dash. 

The free wheeling transmission was a major change as indicated with a button at the top of gear shifter. 

I have been told that some  early 1931 Model S cars came without free wheeling.

I believe the radiator was changed from 30 to 31.

 

Photos will help.

 

[Hupp36]

This pic which is  not  to good shows the difference in the  bottom radiator pan on the  1930 and 1931 Model  Hupp.  The winter issue of the Hupp Hearld which is  a Hupp club  magazine 1977 issue is  all about the model S and the  changes in  the  1930 and 1931. My printer died, so  I could  not  scan in  pic. I  used  my  smart  phone.

[EDHupp]

Thanks!!  I'm almost certain now that it's a 1930, no freewheeling transmission and no temp gauge on the dash.  It's in pieces, so it's hard to take good pics of it, and hard to tell on the radiator pan.